dumb as dirt
An American simile meaning spectacularly, almost impressively stupid.
Seen in the wild
And they wonder why we think they're as dumb as dirt.
It infuriates me no end every day the fact that people think this moron is smart and effective. I can’t stand how fucking stupid so much of the population is and I don’t care if that makes me sound elitist or whatever…
Idiotic movie. Stunningly filmed. Dumb as dirt
Definitions
An American simile meaning spectacularly, almost impressively stupid. The comparison to dirt — the most ordinary, inert substance imaginable — underscores that the person being described has achieved a kind of peak dullness. Used affectionately among friends or as a pointed insult depending on tone, 'dumb as dirt' is a timeless piece of folksy American trash talk that's found its way into everyday conversation across the English-speaking world.
I can't believe he locked his keys in the car again — that man is dumb as dirt.
Comments
(slang, simile) Extremely stupid.
“And they wonder why we think they're as dumb as dirt.”
— Bluesky· May 2026“It infuriates me no end every day the fact that people think this moron is smart and effective. I can’t stand how fucking stupid so much of the population is and I don’t care if that makes me sound elitist or whatever. They are planning n fucking dumb as dirt”
— Bluesky· May 2026“Idiotic movie. Stunningly filmed. Dumb as dirt”
— Bluesky· May 2026
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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